/* Copyright (c) 2007 HomeAway, Inc.
 *  All rights reserved.  http://www.atomserver.org
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


package org.atomserver.utils.collections;

import java.util.Iterator;

/**
 * @author Chris Berry  (chriswberry at gmail.com)
 * @author Bryon Jacob (bryon at jacob.net)
 */
public class ArraySegmentIterator<T> implements Iterator<T> {
    private T[] array;
    private int pos;
    private int to;

    public ArraySegmentIterator(T[] array, int from) {
        this(array, from, array.length);
    }
    
    public ArraySegmentIterator(T[] array, int from, int to) {
        this.array = array;
        this.pos = from;
        this.to = to;
    }

    public boolean hasNext() {
        return pos < to;
    }

    public T next() {
        return array[pos++];
    }

    public void remove() {
        throw new UnsupportedOperationException("cannot remove from ArraySegmentIterator");
    }
}
